I took a road trip to visit some family in my crossfire. While trying to leave after fueling up my car refuses to start, or run. The engine starts then stalls out immediately. I got it to drive home from the gas station, but I was only able to go less then 10mph (with the pedal to the floor). I just got a pretty bad vacuum leak fixed, and replaced the spark plugs, I think it could be the fuel system, but I'd like to hear any advice